Which is the largest country in the world in terms of population?

A. India

B. Russia

C. China

D. United States of America

Brief Facts about largest population state:

India is the largest country in terms of population. Previously, China was the largest country in terms of population. But, in the the year 202a 3 India surpassed China and became the largest populous country in the world. For decades China adopted one-child policy to control its population which resulted in ,decreasea in population of China.

Also Read: Latest Current Affairs MCQs 2025

Top States of World – Terms of Populaton-Land

Serial Number	State Name	Capital of State	Population (2025 est.)	Total Area (km²)
1	India	New Delhi	1.464 billion	3,300,000
2	China	Beijing	1.416 billion	9,700,000
3	United States	Washington, D.C.	347 million	9,400,000
4	Indonesia	Jakarta	286 million	1,900,000
5	Pakistan	Islamabad	255 million	882,000
6	Nigeria	Abuja	238 million	924,000
7	Brazil	Brasília	213 million	8,500,000
8	Bangladesh	Dhaka	176 million	148,000
9	Russia	Moscow	144 million	17,100,000
10	Ethiopia	Addis Ababa	133 million	1,100,000

The table above shows the details of the world’s largest state in terms of population. It shows that India is currently the largest country in the world in terms of population. According to the latest census the population of India is about 1.464 billion. In the past, China was the largest populous state in the world. But now India is largest country in the world with respect to number of people living in it.

Smallest State of World

Vatican City is the smallest state in the world. Its total area is 0.49 square kilometers. In fact, Vatican City is the religious hub of the Christian community in the world. Moreover, the population of this state is also lowest in the world. There are almost 800 to 1200 people who are living in this smallest state in the world. These people are also clergy and guards. Further, it is the religious as well as administrative centre of the Roman Catholic Church. This place is also home to the Pope. Its major landmarks include St. Peter’s Basilica, the Sistine Chapel, and the Vatican Museums.

List of all Smallest and Largest things in the world:

Natural things Smallest and largest. here, the job-seeking aspirants will learn all about the smallest and largest naturally occuring things in the world. The name or information about these things are often asked in many job and academic related papers.

Name of Thing	Largest in the World	Smallest in the World
Ocean	Pacific Ocean located between Asia and Nort/Sourth America.	Arctic Ocean located on the north pole of the world is the smallest ocean of the world.
Sea	Philippine Sea	Baltic Sea is the smallest sea in the world.
Island	Greenland, the largest Island located on the north pole.	Bishop Rock (smallest inhabited)
River (by discharge)	Amazon River, located in South America Continent.	Roe River (Montana, USA)
Lake (area)	The Caspian Sea is the largest Lake. But technically, it is a lake.	Benxi Lake, China (smallest natural)
Desert (hot)	Sahara Desert in the African Continent is the largest desert in the world.	Carcross Desert, Canada
Mountain	Mount Everest (8,848 m), in Asia is the largest altitude place in the world.	Mount Wycheproof, Australia (43 m above surrounding plain)
Glacier	Lambert Glacier, Antarctica	Underwood Glacier, Antarctica
Rainforest	Amazon Rainforest is among the world thickest and largest rain forest.	Bukit Nanas Forest Reserve, Malaysia (tiny urban rainforest)

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Living Things which are Largest and Smallest

The living organisms that are smallest and largest in the world are here. The information about these natural organisam is repeteadely asked in many MCQs based questions.

Also Read: World Current Affairs MCQs 2025 PDF

Name of Thing	Largest	Smallest
Animal	Blue Whale that is mostly found in the Pacific Ocean.	Etruscan Shrew (smallest mammal by weight)
Bird	Ostrich, a two-legged bird located almost everywhere in the world.	Bee Hummingbird (Cuba), it is the smallest bird in the world.
Reptile	Saltwater Crocodile, this reptile is found in some of the states of the world.	Jaragua Gecko is the smallest reptile in the world.
Fish	Whale Shark is the largest fish in the world.	Paedocypris is the smallest fish and is often found in freshwater only.
Flower	Rafflesia arnoldii	Watermeal is one of the beautiful flowers in the world and also the smallest in the world.
Tree Species	Sequoia sempervirens	Dwarf Willow

Human-Made Things that are Largest and Smallest

Here is the list of smallest and largest things in the world that are human made. Such as, largest building in the world, largest plane, largest bridge, largest computer in the world etc.

Name of the Things	Largest	Smallest
Building (height)	Burj Khalifa, Dubai (828 m) is currently the largest building in the world.	Newby–McMahon Building, USA (nicknamed “world’s smallest skyscraper”).
Statue	Statue of Unity, India (182 m) is the largest man-made statue in the world.	Humpty Dumpty, New Zealand, has the title of the smallest statue in the world.
Bridge (length)	Danyang–Kunshan Grand Bridge, China	Zolotoy Bridge Miniature (functional small)
Airport (area)	King Fahd International Airport, Saudi Arabia	Juancho E. Yrausquin Airport, Saba (shortest commercial runway)
Library	Library of Congress, USA	Little Free Library boxes (community-based micro libraries)
Dam	The Three Gorges Dam, China (capacity), was recently built and it is the largest dam in the world.	Inman Power Plant Dam, USA (very small functional dam)

4. Countries & Cities

Category	Largest	Smallest
Country by Area	Russia is the largest state in the world.	Vatican City in Italy is the smallest state in the world.
Country (population)	India (2023 estimate) has become the largest state with respect to population and bypassed China in 2023.	Vatican City is also the smallest state in respect of population.
Continent	Asia is the largest continent. Moreover, Russia, India, China, and Pakistan also come in the Asian Continent.	Australia (if counted as a continent)
City (area)	Hulunbuir, China	Vatican City (city-state)

Space Largest and Smallest Things

Name of Things	Largest	Smallest
Planet (Solar System)	Jupiter is the largest planet in the world.	Mercury is the smallest planet in space
Star Known	UY Scuti (by radius)	EBLM J0555-57Ab (smallest known)
Moon	Ganymede (of Jupiter) is the smallest moon of space.	Deimos (Mars’s smaller moon)